Stephen t



(No Model.)

s. T. BRYGE.

*HOT Am PURNAGE. No. 819,062. Patented June 2, 1835r futtorneg/d/ llrurnn Sri-tries Farnnrrrrcn.

srnrunn r. Buren, or DAYTON, curo.

HOT-Ai R FU RNCE.

SPECIFICATION forming part of Letters Patent No. 319,062,dated dune 2, 1885.

Application filed .Tune 531, 1834. (No model.)

To all whom t 11i-ay concern.-

Be it known that I, STEPHEN T. Buren, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented a new and useful Hot-Air Furnace, of which the following is a specification, reference being had to the accompanying drawings.

This invention has relation to self-feeding furnaces and stoves; and it has for its object to provide a heater ofthe ciassreferred to that shall possess superior advantages over others of its class in point of simplicity, durability, and general efficiency; and it consists in the construction and novel arrangement of parts, as will be hereinafter fully described, and particularly pointed out in the claim.

In the drawings, Figure 1 is a vertical sectional view on the line rr :t in Fig. 2, and Fig. 2 is a horizontal section on the line y y in Fig. l.

Referring by letter to the accompanying drawings, A designates the casing of a stove or furnace. B is the magazine, which is partially surrounded by hot-air fines C. D is the nre-bowl; E, the fire-door; F, the feed-door; G, the radiator; H, the clean-out trap; I, the grate, andJ the door to the ash pit or pan.

The magazine is provid ed with a double wall, K, and is constructed with uniform or gradual increase from top to bottom to facilitate self-feeding. The double wall K forms an air-space, L. The feed-door is provided with a register or opening, G', through which air is introduced and passes through perforations M in the inner wall or cylinder of the magazine, into the air-space L, and down and again enters the magazine just above the lirechamber, thereby supplying a downdraft to the fire, and preventing the coal from burning or charring in the magazine. The air in passing down through the air-space carries with it the smoke and gases that would otherwise accumulate in the magazine to the tirechamber where it is consumed. It also operates to keep down the temperature of the feedcylinder. The top radiator, G, is provided with a clean-out trap, II, which is located directly over the feed-cylinder, and is pivoted and arranged to dump the soot and ashes accumulating in the radiator directly into the tire through the magazine. The {ire-bowl D islined leither with cast-iron'or iire-bricl ,with a space, I', between said lining and the rebowl. The lining is supported by a cast-iron ring, I), provided with holes or orifices Q, to admit air from the ash-pit to the air-space between the irebowl and lining, which air passes out onf said space through openings O at the top of the lining into the fire-chamber above the coal for the purpose of protecting the fire-bowl and preventing it from burning out, and to insure more perfect combustion of the smoke and gases. R R are the hot-air iiues leading from the furnace, and S is the smokeflue.

The magazine may be combined with one cylinder with iiues or passages inside of the cylinder to carry off gas and supply draft for combustion.

It will be seen that by the introduction of air to the magazine above the fuel the temperature of the inner chamber will be modified, and a current of air will be supplied to the space or passage between the two walls to the magazine, and to carry any gases and smoke accumulating in the magazine to the combustion-chamber.

I am aware that it has been proposed to construct stoves with magazines having tubes eX- tending down their inner sides, said tubes communicating with the inside of the magazines at their upper ends and with the rirechamber at their lower ends, and covers for the magazines having dampers for admitting air to the upper ends of the magazines, chambers around the upper ends of the magazines, and flues communicating with said chambers and with the tire-chambers, and this also I disclaim. My invention differs from this in that I provide a radiating-chamber at the upper end of the magazine, with which radiatingchamber the iiues that are arranged around the magazine communicate, and in providing a trap for the upper end of the magazine, between it and the radiating-chamber.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

A hot-air furnace having the casing provided with a register for admitting cold air IOO above the fuel in the magazine, a magazine l having an inner and an outer wall, the inner wall being provided with openings near its top, whereby a current of cold air is passed downwardly between the walls of the magazine to the combustion-chamber, a radiatingeharnber located above the magazine, dues communicating with the radiating-chamber and with the combustion-chamber for Convey- Io ing the heated air to the radiating-chamber,

and a trap between the upper end of the magazine and the radiatingehamber, for the pun pose set forth, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

' STEPHEN T. BRYCE.

Ttnessesz DAVID B. CoRwIN, FRANK S. BREENE. 

